A certified copy is an identical copy of an original document which holds a certificate or endorsement which is identically reflective of the original document. Certified copies are generally used in common law nations as an easy way of issuing document copies in an affordable way. A certified copy is often needed in commercial procedure as a means for clearing a plethora of procedures and changes to policy.

A certified copy is in many ways close to a notarized copy, something which is utilized in several nations, as well as in various states in the U.S.